General Knowledge : General Science QUESTIONS AND ANSWERS :: part15 : 66 to 70
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :
66.Which of the following is used as good biofertiliser in rice fields ? |
| Cow dung |
| Azolla |
| A green legume |
| Moss |
67.Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Whale is an aquatic mammal.Reason (R) : They have a very thin layer of fat in subdermis. |
| Both A and R are true and R is the correct explanation of A. |
| Both A and R are true but R is not the correct explanation of A. |
| A is true but R is false. |
| A is false but R is true. |
68.Microphone is a device in which |
| sound waves are directly transmitted. |
| electrical energy is converted into sound waves directly. |
| sound waves are converted into electrical energy and then reconverted into sound affter transmission. |
| amplification is not required at all. |
69.From Which of the following sources can the purest form of water be obtained ? |
| Rain water |
| River water |
| Well water |
| Mineral water |
70.Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : The main source of energy in most of the Indian diets is carbohydrate.Reason (R) : Carbohydrates provide more energy per gram than proteins and fats. |
| Both A and R are true and R is the correct explanation of A. |
| Both A and R are true but R is not the correct explanation of A. |
| A is true but R is false. |
| A is false but R is true. |
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